Scaling Large Topologies - CPU Clock Speed vs. Core Count?
Posted: Sat Mar 07, 2026 12:32 am
I’m currently in the process of rebuilding my home lab server specifically for EVE-NG (Professional Edition) to simulate some complex service provider topologies. I’ve been running into some performance bottlenecks when spinning up multiple Cisco XRv9K and Nokia SR-OS nodes simultaneously.
I’m torn between two hardware paths and wanted to get some insights from the community's real-world experience:
The "High Core Count" Route: Going with dual Xeon Scalable processors (older gen, but lots of cores). This seems great for running 50+ lightweight nodes, but I worry about the slower clock speeds when the SD-WAN controllers start their boot-up sequences.
The "High Clock Speed" Route: Using a modern Ryzen 9 or Core i9 setup with fewer cores but much higher IPC. My theory is that it might handle the heavy resource-intensive images much smoother.
Has anyone done a side-by-side comparison for large-scale EVE-NG environments? Also, how much of a difference have you noticed when moving the image storage to NVMe Gen4 instead of standard SATA SSDs in terms of node "boot-up storms"?
I want to build a "prestige" lab environment that doesn't lag when I have 20+ images running. Any feedback on the hardware sweet spot for 2026 would be greatly appreciated!
Cheers!
khosim
I’m torn between two hardware paths and wanted to get some insights from the community's real-world experience:
The "High Core Count" Route: Going with dual Xeon Scalable processors (older gen, but lots of cores). This seems great for running 50+ lightweight nodes, but I worry about the slower clock speeds when the SD-WAN controllers start their boot-up sequences.
The "High Clock Speed" Route: Using a modern Ryzen 9 or Core i9 setup with fewer cores but much higher IPC. My theory is that it might handle the heavy resource-intensive images much smoother.
Has anyone done a side-by-side comparison for large-scale EVE-NG environments? Also, how much of a difference have you noticed when moving the image storage to NVMe Gen4 instead of standard SATA SSDs in terms of node "boot-up storms"?
I want to build a "prestige" lab environment that doesn't lag when I have 20+ images running. Any feedback on the hardware sweet spot for 2026 would be greatly appreciated!
Cheers!
khosim